摘要
对氨水扩散吸收式冰箱的平直翅片管冷凝器进行数值模拟,运用Fluent软件对空气不同流速下的流动与换热进行比较计算,得到平直翅片管冷凝器在自然对流下的温度场和速度场,及流速U与换热系数h,Re数与Nu数以及Re数与阻力系数f的拟合关系式。
Numerical simulation on flat finned-tube condenser of the diffusion absorption refrigerator is established.Using Fluent,the airflow and heat exchange under different air velocity are caculated and compared,the parameters of are obtained.The relevant fitting formulae are established,including the coefficient of heat transfer and velocity,Reynolds number and Nusselt number,as well as resistance coefficient and Reynolds number.
出处
《制冷与空调》
2014年第6期44-47,共4页
Refrigeration and Air-Conditioning
基金
中央高校基本科研业务费专项资金资助
关键词
扩散吸收式
平直翅片管
自然对流
diffusion absorption type
flat finned-tube
natural convection
